K&F Concept82mm Magnetic Lens Filter Caps with Thread

K&F Concept 82mm Thread & Magnetic 2-in-1 Lens Filter Cap Only Compatible with K&F Magnetic Swap System

K&F Concept 82mm Empty Magnetic Base Filter Ring (Works ONLY on K&F Concept Magnetic Quick Swap System)

K&F Concept 82mm Magnetic GND8 ND8 ND64 ND1000 Magnetic Basic Ring Caemra Lens Filters Kit (5 Pack) -Optical Glass Neutral Density Filters Kit with 28 Multi-Layer Coated (Nano-X Series)